The Number

642872

Six Hundred and Forty-Two Thousand Eight Hundred and Seventy-Two

In Base 11 Undecimal Is

3a9aaa11

The numbers with a 11 subscript use Base 11 Undecimal notation.

For more familiar numbers: See Six Hundred and Forty-Two Thousand Eight Hundred and Seventy-Two in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

642869
3a9aa711
Six Hundred and Forty-Two Thousand Eight Hundred and Sixty-Nine in Base 11 Undecimal
642870
3a9aa811
Six Hundred and Forty-Two Thousand Eight Hundred and Seventy in Base 11 Undecimal
642871
3a9aa911
Six Hundred and Forty-Two Thousand Eight Hundred and Seventy-One in Base 11 Undecimal
642873
3aa00011
Six Hundred and Forty-Two Thousand Eight Hundred and Seventy-Three in Base 11 Undecimal
642874
3aa00111
Six Hundred and Forty-Two Thousand Eight Hundred and Seventy-Four in Base 11 Undecimal
642875
3aa00211
Six Hundred and Forty-Two Thousand Eight Hundred and Seventy-Five in Base 11 Undecimal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

6.42872e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00000283491996476432411

The reciprocal of 642872 in Base 11 Undecimal.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 3a9aaa11 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Six hundred and forty-two thousand eight hundred and seventy-two is a composite number with 32 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Six hundred and forty-two thousand eight hundred and seventy-two is a composite number with 32 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number six hundred and forty-two thousand eight hundred and seventy-two has the following 4 prime factors:

2
211
Two in Base 11 Undecimal
17
1611
Seventeen in Base 11 Undecimal
29
2711
Twenty-Nine in Base 11 Undecimal
163
13911
One Hundred and Sixty-Three in Base 11 Undecimal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

2113 · 16111 · 27111 · 139111 = 3a9aaa11

Base Conversions

The number six hundred and forty-two thousand eight hundred and seventy-two in 35 different bases